Patent · US Active

Sifting screen

US8925735B2 · kind B2 · utility

1Cited by

27References

19Claims

0Family size

Assignee

M-I L.L.C. · US

Inventors

Graham Robertson · Sydney, AU
Brian S. Carr · Florence, US
Eric Cady · Walton, US

Key dates

Filing date	Jul 8, 2009
Grant date	Jan 6, 2015
Priority date	—
Expiry date	Mar 7, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB07B1/4645
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a screen frame adapted for use in a shaker to separate solids from a liquid/solid mixture and to which woven wire mesh is to be attached, comprising an outer perimeter and a plurality of plastics ribs extending between opposing regions of the perimeter, the plastics ribs together forming an upper face and a lower face, wherein the frame further comprises at least one metal rib extending between opposing regions of the perimeter and extending from the upper face to the lower face, and to a shaker comprising at least one such screen frame.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.